The Collaborative International Dictionary of English v.0.48:

Protoplasm \Pro"to*plasm\, n. [Proto- + Gr. ? form, fr. ? to
   mold.] (Biol.)
   The viscid and more or less granular material of vegetable
   and animal cells, possessed of vital properties by which the
   processes of nutrition, secretion, and growth go forward; the
   so-called " physical basis of life;" the original cell
   substance, cytoplasm, cytoblastema, bioplasm sarcode, etc.
   [1913 Webster]

   Note: The lowest forms of animal and vegetable life
         (unicellular organisms) consist of simple or unaltered
         protoplasm; the tissues of the higher organisms, of
         differentiated protoplasm.
         [1913 Webster]

WordNet (r) 3.0 (2006):

protoplasm
    n 1: the substance of a living cell (including cytoplasm and
         nucleus) [syn: protoplasm, living substance]

Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "protoplasm":
   animal cell, bioplast, cell, cellular tissue, cellule,
   chromatoplasm, coenocyte, corpuscle, cytoplasm, ectoplasm,
   endoplasm, energid, eucaryotic cell, germ cell, plant cell,
   plasmodium, procaryotic cell, reticulum, somatic cell, syncytium,
   trophoplasm